Added Spanish Translations

[edeoliv]

I have included the necessary translations for Spanish in the application. This improvement ensures a better experience for Spanish-speaking users.

[what-the-diff]

PR Summary

• Addition of a New Resource File
  A new file, widgets.php, has been created in the resources/lang/es directory. This suggests that there is a preparation for Spanish language support in our application, particularly for widgets within the user interface.

• Dashboard Page Translations
  Translations have been added for various labels and headings related to the Google Analytics Dashboard page. This means the Google Analytics component of our application is being prepared to function seamlessly for Spanish-speaking users.

• Enhancements to Filter and Trajectory Labels
  There is now added support for translations of labels used for filtering and trajectory description within the dashboard. This further contributes to making the user experience more intuitive for users who prefer Spanish.

[clizaola]

I am a native Spanish speaker and I think the translation is ok

[bezhanSalleh]

Thanks!